離子2，遍歷對象

Question

我有這樣的對象：

{"": "Select job type", F: "Full-time", P: "Part-time", C: "Contract", T: "Temporary} 

我希望能夠通過它循環，並得到鍵和值。我打算寫一個函數，看起來像

getJobType(letter){ 
     let jobType = JSON.parse(localStorage.getItem('jobType')) 

     //if my letter matches the key in the object then i want to return the value 

    } 

我曾嘗試：

Object.keys(JSON.parse(jobType)).forEach(key=> { 
    console.log(jobType[key]) ;  
    }); 

和

jobType.forEach((value, key, index) => { 
    console.log("This is the value", value) 
    console.log("from the key", key) 
}) 

，但它不工作。

Answer 1

你缺少「在結束‘臨時’，下面的代碼工作的迭代。您還可以使用過濾器的方法來過濾出的值。

var jobTypes = {"": "Select job type", F: "Full-time", P: "Part-time", C: "Contract", T: "Temporary"}; 

Object.keys(jobTypes).forEach(function(key) { 
    console.log(jobTypes[key]) 
});